PART A
Answer all the questions in this part. Write all the answers in the spaces provided. You are advised not to spend more than 30 minutes on this part.
1. Circle the letter corresponding to the best answer.
a) Which of the following sets of diseases is caused by the same type of organism?
A. Cassava mosaic, tobacco mosaic and blight.
B. Blight, coffee berry disease and rusts.
C. Black rot, maize streak and bacterial wilt.
D. Blight, black rot and rusts.
b) The list below gives the methods commonly used to control soil erosion:
(i) Mulching
(ii) Planting vegetation
(iii) Constructing gabions
(iv) Terracing
Which of these methods would best be used in an area with a gentle slope?
A. (i) and (iv)
B. (i) and (ii)
C. (ii) and (iii)
D. (ii) and (iv)
c) A student observed a group of cattle and found that some of the cattle had watery eyes, hair loss on the tail end and swollen chests and abdomen. Which disease were these animals suffering from?
A. Anthrax
B. East coast fever
C. Foot and mouth disease
D. Nagana
d) A disc plough is pushed into the ground by the
A. Weight of the plough
B. Rotation of the discs
C. Tractor's pull
D. Vibration of the beans
2. a) State four objectives of breeding crop plants.
(i) ............................................................................................................
(ii) .............................................................................................................
(iii) ............................................................................................................
(iv) ............................................................................................................
b) (i)What is hybrid maize?
(ii) Why should you not plant seeds harvested from a hybrid crop to produce the next crop?
3. The diagram below is an experiment set up to investigate one of the soil characteristics.
IMAGE
a) In which of the soil samples would water rise
(i) Fastest ........................................................................................
(ii) Highest? .......................................................................................
b) Indicate by marking on the drawing the relative levels of water in the three soil samples after the experiment has stayed overnight.
c) (i)What soil characteristics is being investigated in the experiment?
(ii) What is the importance of this characteristic to the plant?
4. The figure below snows an important part of a tractor system. Study it and answer the questions that follow.
IMAGE
a) Name the parts labelled 1, 2, 3, 4 and 5 on the diagram.
b) (i) What name is given to the part of the tractor system shown in the figure?
(ii) To which system does the part shown in the figure belong?
c) State the function of this part of the tractor system.
5. a) Define the following terms:
(i) dominant gene
(ii) recessive gene
b) The game for the polled (hornless) condition in cattle is dominant to that of the horned condition. A polled cow is mated to a polled bull and the F1 offspring is horned. Using genetic symbols show how this is possible.
PART B
Answer four questions, including at least one from each section. Write all your answers in the answer booklets provided.
SECTION I
MECHANISATION AND FARM MANAGEMENT
6. a) Outline the advantages of mechanizing agricultural production.
b) Discuss problems a farmer is likely to face in trying to mechanize production.
7. a) Draw up a balance sheet for Mr. Kato's farm for the year ending 31st December, 1993 from the following information.
Bank loan, 1,300,000/=; bank overdraft, 150,000/=; cash in bank 120,000/=;account receivable, 25,000/=; farm machinery valued at 500,000/=; internet payable, 12,000/=; cash at hand, 50,000/=; 12heifers, valued at 90,000/=; each: land valued at 600,000/=; farm buildings valued at 800,000/=; cops in store worth 35,000/=; vet services to be paid for 75,000/=; taxes due 160,000/=.
b) Of what use is the balance sheet to Mr. Kato's business?
8. a) What is meant by land tenure?
b) Discuss the problems associated with the communal land tenure system.
c) Name any three other forms of land tenure in Uganda.
SECTION II
CROP PRODUCTION
9. a) Outline the factors you would consider when selecting seeds for planting.
b) Describe an experiment you would carry out to determine the germination percentage of a seed lot.
10. a) Name six common pasture grass species.
b) How can a natural pasture be improved?
c) State the advantages and disadvantages of zero grazing.
11. a) Explain how the following management practices contribute to good crop yields
(i) Proper seed bed preparation.
(ii) Timely planting of crops.
(iii)Disease and pest management.
b) What is the importance of crop storage?
SECTION III
ANIMAL PRODUCTION
12. a) State the characteristics of a good calf house.
b) (i)Describe how you would train a calf to drink milk from a bucket.
(ii) Of what advantage is it to farmer to train a calf to drink milk from a bucket?
c) State two disadvantages of bucket feeding in calf rearing.
13. a) Mention and explain the factors you would consider when selecting an animal for breeding purposes.
b) Outline the problems that a farmer may while keeping exotic cattle breeds.
14. a) Describe the life cycle of a two-host tick.
b) Give the reasons why ticks are a problem to livestock farmers.